Assigb ob to tgice bbotsebss



J. E. TONE.

PERCOLATER.

APIPLICATION FILED Aue.16.1915.

3L 3 31. 9 66 1 w Patented m 21, 1919.

@Ziffiesses lwenzfoi' application August to,

To all whom may concern: c

Be it known that 1, Ear E. Torin, a citizen or" the United Eltates and resident oi Des Moines, in the county or Polls and or lowa,' have invented a certain new usei ul Percolator, of which the is a specification.

The object of my invention is provide a percolator oi simple durable inexpensive construction tor the purpose or removing the flavoring extract from material such tor instance as vanilla beans [i fur ther object is to provide means whereby a continuous circulation may he established through a means while the contents thereof are under a high pressure.

1 further object is to provide means tor maintaining the liquid which is being flavored at a relatively high temperature.

A further object is to provide a device adapted to bring the material with which the liquid is being flavored. into contact the largest practicable amount oil such liquid.

l /ly invention consists in the construction arrangement and combination with a percolator receptacle oi? common construc tion and a means tor mechanically forcing liquids slowly, through the percolator from top to bottom during the time that the liquids are being subjected to heat, and also for automatically regulating the temperature of the liquid in the receptacle, whereby the objects contemplated are attained, as hereinafter more fully set forth pointed out in my claim, and illustrated in the ac companying drawings, in which:

The device is illustrated in side elevation, the main receptacle and other parts being shown in section to illustrate the interior construction.

Referring to the accompanying drawings, l have used the reference numeral 10 to indicate the main receptacle provided at its upper end with the detachable cover 11, held in place by adjustable clamping devices 12. The cover ll and clamping devices 12 are of such strength and so arranged that a liquid tight joint may be maintained although the interior of the receptacle 10 be under high ressurei @n this cover I preferably provide a safety valve 13. Beneath the bottom of the receptacle ill is a specificetlon oi i l-otters removed or installed.

At- A in .L 6! Patented we c1, reuse-Q steam jacket it having a dr inage petcoclr it.

Within the interior of the main receptacle 1 whereby they may be compressed sulliciently pass the lugs 18' when the bag is being The i6 is such depth as to fill from third to hall of interior the receptacle l0.

'(Jommunicating with the upper portion of the receptacle 10 is a horizontal circulating pipe 19, and communicating with the bottom of the receptacle and extending through the steam jacket la, is a vertically arranged circulating pipe 20. This latter has a valve 2i at its lower end through which the contents of the receptacle may be drawn on when desired.

Communicating wit the pipe is a horizontally arranged circulating pipe 22 and between the pipes 22 and i9 is a vertically arranged circulating pipe 938. At the juncture of the pipesfifi and 23 provide a rotary pump 24c of any ordinary con struction. it is thought to be unnecessary to illustrate and describe the pump herein in. detail. llhe pump may be driven by means of the pulley 25 and belt 26 or in any other suitable manner.

1 preferably arrange near the central the lower i. ones being formed from resilient metal portion of the circulatin ioe 23 a section a lb i of glass pipe 27 through which the movement or" the liquid may be conveniently observed.

in order to automatically regulate the temperature of the contents of the receptacle, l preferably provide on the steam pipe 28 that leads to the steam jacket l l a valve 29. This valve is controlled 'bya thermostatic device comprising a closed tube 30 inserted in upper end of the pipe 23 and havingits interior in communication with a small pipe 31, which pipe leads to the tube 32 and contains the thermostatic device of ordinary construction by which the valve 29 is closed when the temperature of the liquid contained within the device reaches been deposited in the bag,

ployed in its stead.

the point where the said liquid is expanded to a certain predetermined degree and this contraction and expansion of the liquid causes the valve to be opened or closed.

The particular construction of this thermostatic device forms no part of my present invention and for that reason it is unnecessary to fully illustrate and describe it, as any ordinary themostatic device may be em- The numeral 33 indicates a thermometer arranged adjacent to the. pipe 19, so that the temperatureof the liquid passing through the pipe may be determined at a glance by the operator.

In practical operation the ba 16 is partially filled with the material Irom which the flavoring is to be extracted. '1 have used this device successfully for the extraction of the flavoring from vanilla beans, although I do not intend to be understood as limiting my invention to the use of any particular kind of material. After the material has the rece tacle 10 is filled with liquid to a point a ve the pipe 19, and the cover clamped in place. Then steam is admitted to the steam Jacket to heat the liquid and the rotary pump is then operated. The operation of the pump preferably continues during the entire process of extracting the flavorlng from the material. The result of the operation of this rotary pum is that the l quid is drawn slowly through the mass of material being operated on, and from the bag downwardly. and then through the ump and is returned to the top of the bag. f it should occur that any solid materials should enter the space between the bottom of the bag and the bottom of the receptacle, then such materials will be forced upwardly through the pump and circulating pipes and be again discharged in the top of the bag, so that after the process has continued for the proper length of time the 'liquid below the bag is relatively clear and free from all solid substances, and any impurities of any kind that may have been developed during the process of erc'olation have been returned and deposited on to of the mass of material within the bag. he operator may at all times clearly see the condition of the liquid through he glass section 27 of the circulat s p p I claim as my invention: In a percolator, asubstantially cylindrical container for liquid having a plurality of inwardly'projecting spaced lugs on its inner surface disposed in the same horizon:

tal plane,-and a substantially cylindrical receptacle of pliable orous material adapted to be received within said container and having resilient distending wings at its upper and lower ends, of substantially the same diameter as the interior of the container, whereby the lower ring may be dis? torted to enable it to be forced past said lugs and the upper ring may rest on sald' lugs to thereby support the receptacle.

Des Moines, Iowa, June 29, 1915. JAY E. TQNE." Witnesses:

A. SHERMAN, WILL FREEMAN. 

